attributeAt
Returns the native attribute value at pointer when the path resolves to an attribute, or null otherwise.
Return
The attribute value at the specified path, or null if the path does not resolve to an attribute.
Parameters
pointer
The KPointer identifying the value to retrieve.
Parses path via KPointer.from and returns the native attribute value at that path, or null.
Return
The attribute value at the specified path, or null if the path does not resolve to an attribute.
Parameters
path
A pointer string (RFC 6901, fragment, or dot-notation, dispatched by prefix).
Throws
if path is not a valid pointer string.